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Module 5: Heredity
Quick questions on Meiosis and gamete formation explained: HSC Biology Module 5
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
A horse has a diploid chromosome number of 2n = 64. State the number of chromosomes in (a) a horse skin cell after mitosis, (b) a horse sperm cell, and (c) a horse zygote immediately after fertilisation. [3 marks]
What is q2?Show answer
Calculate the number of genetically distinct gametes a single human could theoretically produce based on independent assortment alone (ignoring crossing over). [2 marks]
What is q3?Show answer
A student claims that "meiosis is just mitosis done twice." (a) Identify two specific events in Meiosis I that do not occur in mitosis. (b) Explain why the student's claim leads to a misunderstanding of how genetic variation arises.
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